Construction And Application Of Knowledge Graph Of Junior Mathematics Based On Chinese Encyclopedia

Whether in the field of scientific research or education,the position of mathematics is very important,and the junior mathematics is also very important in middle school education.However,junior high school learners have poor self-learning abilities,most of them rely on teachers to impart knowledge,and the cognitive structure of the learner's own knowledge will also influence the learners' digestion of existing knowledge and their ability to accept new knowledge.With the development of information technology and the continuous change of Internet information and knowledge,the education field has begun to pay more attention to the technology and information of teaching.Under this background,various online teaching platforms and computer-assisted teaching methods have begun to emerge.However,current education and teaching resources are mainly shared by various types of knowledge bases and Internet information.There are problems such as duplication of resources,non-standard concept description,inconsistent knowledge representation methods,and poor knowledge relevance in the knowledge base.The representation,reasoning,and sharing of knowledge,and its application to teaching,have a direct impact on the quality of teaching and the quality of learners' learning.The knowledge graph can be used for content analysis and natural language processing,and the related visual tools can be used to display the knowledge structure and its mutual relations well,which fully meets the learners' cognitive habits.Therefore,according to the knowledge characteristics of the junior mathematics disciplines and the curriculum standards,crawling and collecting the knowledge information related to the junior mathematics in the Chinese encyclopedia on the Internet and constructing junior mathematics knowledge graphs can not only improve the learner's learning efficiency,but also allows learners to master the knowledge hierarchy of the discipline and the interrelationships among the knowledge to form more rigorous mathematical logic thinking.This paper used the ontology construction technology to study on the design and application of a knowledge graph to the junior mathematics knowledge.The main research contents are as follows:Based on the study of relevant theories and technologies,the author has integrated the ontology and the knowledge graph to form the principle and method ofconstructing an ontology-based discipline knowledge graph.In order to extract the concept and conceptual relationship of junior mathematics needed for ontology construction,the author firstly downloaded the Wikipedia corpus database files from Chinese Wikipedia database,and stored it in the MySQL database,analyzed the structure of database tables and the relationship between tables and between fields before designing relevant algorithms,took the chapter titles in junior mathematics textbooks(People's Education Press)as keywords(such as Triangle),before the author have gotten the concept of the junior mathematics field from the Wikipedia corpus database.secondly,based on the extracted concept and relationship between fields in the database tables,the author extracted the generic concept and the specific concept about the field of junior mathematics,used a Wikipedia's redirection mechanism to extract its synonymous conceptual relationships.finally,the author employed the junior mathematics textbooks as a reference to proofread extracted concepts and conceptual relation before putting some new concepts and conceptual relationships into the Chinese Wikipedia corpus database from the Baidu Baike corpus database.This will lay a data foundation to construct a knowledge graph of junior mathematics.Based on the existing methods of constructing junior mathematics knowledge graph and the construction process for ontology-based general knowledge graph,the author described how the proper knowledge graph of junior mathematics was constructed in the paper,completed the construction of junior mathematics knowledge graph based on the Chinese encyclopedia with the help of an ontology building tool,Protégé.Finally,based on the ontology of junior mathematics,a learning platform for junior mathematics knowledge graph was designed,which can be used to query the relations among the knowledge points of junior mathematics.Query results were shown in the form of graphs and the structure graphs of concepts was constructed to show the structural relation among knowledge points.